Question

In a panic-stop, a car's brakes produced an acceleration of -8.0 m/s2 (or a deceleration of 8.0 m/s2). If you are traveling at 35 m/s, your speed after braking for 3.0 s will be

Answer 1

35-8-8-8=3 or 3 m/s

Answer 2

Vi - 8 t
like DROSP said